A condenser will allow which type of current to flow through it, but block the other? One use is to suppress voltage surges.

A condenser will allow which type of current to flow through it, but block the other? One use is to suppress voltage surges.

• A. DC, AC, Amperage Spikes
• B. AC, DC, Amperage Spikes
• C. AC, DC, Voltage Surges
• D. DC, AC, Voltage Surges

Answer: (C)

Capacitors pass alternating current while blocking direct current because they charge and discharge as the voltage changes. With AC, the continuously reversing voltage keeps the capacitor charging and discharging, so current keeps flowing. With DC, once the capacitor charges, no continuous current flows through it, so DC is blocked. Another key point is that capacitors are commonly used to suppress voltage surges because they can absorb or smooth out brief spikes on a line, protecting downstream equipment. The best answer reflects all of this: it states that AC can flow through, DC is blocked, and that a capacitor is used to suppress voltage surges. The other options either imply the opposite current behavior or introduce terms that don’t align with the primary function described.

Capacitors pass alternating current while blocking direct current because they charge and discharge as the voltage changes. With AC, the continuously reversing voltage keeps the capacitor charging and discharging, so current keeps flowing. With DC, once the capacitor charges, no continuous current flows through it, so DC is blocked.

Another key point is that capacitors are commonly used to suppress voltage surges because they can absorb or smooth out brief spikes on a line, protecting downstream equipment.

The best answer reflects all of this: it states that AC can flow through, DC is blocked, and that a capacitor is used to suppress voltage surges. The other options either imply the opposite current behavior or introduce terms that don’t align with the primary function described.